package edu.wata.web.filter;

import java.io.IOException;
import java.util.List;

import javax.servlet.DispatcherType;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@WebFilter(dispatcherTypes = { DispatcherType.FORWARD }, urlPatterns = { "/views/main.jsp" })
public class PermissionCheckFilter implements Filter {

	public void destroy() {
	}

	public void doFilter(ServletRequest req, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpSession session = request.getSession();
		if (session.getAttribute("name") != null) {
			PermissionService permissionService = new PermissionServiceImpl();
			List<Permission> permissions = permissionService.getPermissions((String) session.getAttribute("name"));
			session.setAttribute("permissions", permissions);
		}
		chain.doFilter(req, response);
	}

	public void init(FilterConfig fConfig) throws ServletException {
	}

}
